Projecting device



G. HAZARVARTIAN.

PROJECTING DEVICE.

APPLICATION FILED FEB-3.19M.

Patented July 29,1919.

INVENTOR WITNESSES ATTORh GARALBED HAZARVARTIAN, or BROOKLYN, nnw YonK.

PROJECTING DEVICE.

Specification of Letters Patent.

Patented July 29, 1919.

Application filed February 3, 1917. Serial No. 146,472.

To all whom it may concern:

Be it known that I, GARABED HAzARvAR- TIAN, a subject of the Sultan of Turkey, re siding at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Projecting Devices, of which the following is a specification.

This invention has relation to projecting devices, with special reference to ordnance, and has for an object to provide a device operable upon the catapult principle for throwing or projecting hand grenades, bombs or the'like.

Another object of the invention is to provide a device of this character, including a rotatably mounted element adapted to support the articles to be projected whereby the element may be rotated, with means for automatically releasing the objects at a predetermined point during the revolution of the element, whereby the object may be projected to a great distance by centrifugal force. p

In addition to the foregoing my invention comprehends improvements in the details of 3 construction and arrangement of parts to be hereinaftermore fully described and particularly set forth in the appended claims.

In the accompanying drawings in which similar and corresponding parts are designated by the same characters of reference, throughout the several views in which they appear:

Figure 1, is a view in side elevation of a projecting device constructed after the mannerxof my invention, and illustrating in dotted lines the position of the rotatable element just prior to the release of the object.

Fig.2, is a view of the device in front elevation, and

Fig. 3, is a detail section taken on the line 3-3 of Fig. 2.

With reference to the drawings 10 indicates a pair ofvertical, horizontally spaced standards mounted upon a base plate 11, said standards supporting at their upper ends a horizontal'shaft 12. Theends of the shaft 12 are reduced as at 13 to enter sleeves 14: which are journaled in the standards, the inner ends of the sleeves 14 being spaced from the enlarged portion of the shaft 12 whereby to form in effect a pair of annular grooves 15.

.A pair of arms 16 are provided, having their intermediate portions apertured whereby to receive in said apertures the reduced portion 13 of the shaft 12, the arms being thus disposed in the annular grooves 15 as will be evidenced upon reference to Fig. 2 of the drawings.

The arms 16 are fixed to the shaft for rotation therewith, and a pulley 17 is fixedly secured to one of the sleeves 14, while a pulley 18 is located below the pulley 17 in vertical alinement therewith, said pulley being mounted upon a transversely extending shaft 19 journaled in the standards 10, and a belt 21) passes over both pulleys for transmitting motion to the uppermost pulley from the lowermost. A source of power 21, which may be an electric motor, internal combustion engine, or the like, is mounted upon the base plate 16 and the power shaft 22 thereof is provided with a spur wheel 23 adapted for meshing engagement with a spur wheel 24 mounted upon the projecting end of the shaft 19.

While the arms 16 are fixed to the shaft 12 for rotation therewith, they are adapted for slight oscillatory movement toward and away from each other, and adjacent ends of the arms are provided with pins 25 extending toward each other for the purpose of entering recesses 26 in a hand grenade, bomb or the like 27, which is to be pro jected. The recesses are provided at opposite sides of the object, and the pins normally enter the recesses to support the object in a releasable manner. The arms at their ends opposite from that which support the bomb are provided with counterweights 29 whereby to balance the arms when a bomb is supported thereby to permit uniform rotation of the arms.

Said mentioned ends of the arms bearing the counterweights 29 are formed with apertures 30, in transverse alinement for supporting the cylindrical ends 31 of a trigger bar 32 which is rectangular, and flattened in cross section and is designed for rotative movement. One of the reduced ends 31 of the trigger bar carries a trip 33 which is substantially triangular in configw ration with one curved edge 34, and is fixed to the trigger bar for rotation therewith. Each arm 16 is provided on its inner face adjacent the trigger bar with a lug 35 and when an object is supported between the opposite ends of the arms, the rectangular portion 32 of the trigger bar is disposed as illustrated in Fig. 3, whereby the lugs 35 ends of the spring connected to each arm whereby to normally urge'said' ends of the arms toward each other in opposition- 'to the "resistance oiiered' by the engagement of the trigger bar with the lugs 7 Located upon thebase plate 11"is a trig 3 bar 36 movable vertically in guides whereby the trip barmay be'moved into-a position in the path of'm'ovement' ofthe' triparm 33 mentioned above; A lever 38 is fulcrumed at an intermediate point as indicate'd at 39, and one end of the lever is adapted to engage a recess formed in the lower end of the trip bar 36, while the opposite end of the-lever is connected'to a'fiexibleelement 40"which passes around apulley tlfmounted upon the base plate, said.

flexibleelement'extending -to a safe distance from the device whereby the trip bar 36 may be raised to discharge-the device in a manner which will b'e'presently obvious.

A bomb or the like is supported-between the arms as indieated in the" drawings; and while the trip" b'ar 36' is in a lowered; position, the motor 21 isener'giZed-wherebyits rotative movement is ooiiimunicated to the shaft 19,- ancl from thence through the me diumof the belt and pull'eys' to' the upper shaftlQ, whereby to impart' to'the'arms 16 rotation at a comparatively high rate of speed. When t'he speed of rotation of the arm has reached the limit required to projeot the object tothe distance desired, the flexible element 40 is drawnto raise theop' posite end of the lever 38 to which the flexible element is connected thereby raising the trip b ar Shinto engagement with" the trip'arm 33 mounted on the armsfofthe device. IVhen the trip arm 38-isengaged-it will be partially rotated so as to 'c'orespondingly rotate the trigger bar to disengage the endsofthe rectangular portion 32-there of from the lugs whereby the 'spring3'6 may draw saidends of the arms" 16 toward each other to corres ondingly separate the opposite ends of the arms'whereby to with: draw the pins/35 from engagement with the object 2 7 the centrifugal'forceaccumulated by the rotating arms being suflic'ie'nt to impart" to the objeotarr impetus to throw the sametoa reat-distance. Itwill beobvious 7 that if the trip barge isproperly arranged the object will be released so as to describe object to the'chstarreedesired; c.

alterations thereover may be-made, and I therefore desire to reserve the right and privilege of changing the form of the details of construction, or otherwise altering the arrangement ofthe parts without departing from the spirit of the inventionor the scope'ofthe appended claims. r 7 Having thus descr'ibedmy invention-what I-claim asnew and desire to secure byLet ters Patentfis; V 1. In a projectile impelling device, are-'- tatable element including a pair of relatively movable members adapted/to support the projectile upon 1 and "therebetween, resilient means for urging the members out of such engagement, and a trigger mechanism for retaining the members in such engagement,

and means operable during rotation'of the elements to release the trigger mechanism to permit the projectile to be'impelled.

2a In an object projecting device, a pair of arms mounted for rotation and for move m'enttoward and away: from each other, means on said arms for supporting an object therebetween when said arms are brought to; gether', means for rotatingthe arm's-,means for retaining the arms in 'positionflto support the object, and means operable during-rotation of the'arms to cause thearlns to be separated whereby to release the object to project the same fromthedevice by centrifugal force. I

3. In an object projecting device, apair of arms mounted for rotation, adjacent ends of'said arms being adapted to support therebetween the object, means for retaining said arms-in engagement with the object, means for rotating the" arms, and means operable during the rotation of the arms for moving the same to disengage the arms from the object whereby to project the'same from" the device by centrifugal force. I V

4.- Inan ob'ect projecting device, a pair of arms'mounted'for rotation and disposedin parallelism, means for supporting between the arms 'atone end thereof the object to be projected, means disposed at the opposite ends of the arms for retaining the same in separated relation whereby to retain the opposite ends of the arms in engagementwith the object, means for rotating the arms, and means operable during rotation of the arms to cause the means for retaining thearms in separatedrelation'to be released, whereby the opposite ends of the arms may be separated to release the object and cause the object to be projected from the machine by centrifugal force.

5. In an object projecting device, a pair of spaced parallel arms mounted for rotation, means for rotating the same, said arms being movable toward and away from each other, to support therebetween at one of their ends an object to be projected, a trigger bar mounted at the opposite end of the arm for releasably retaining the same in spaced relation, resilient means for urging said ends of the arms bearing the trigger arm, toward each other in opposition to the trigger bar, and a stationarily mounted trip for en aging said trigger bar during rotation 0 the arms to actuate the same whereby to permit the ends of the arms bearing the trigger bar to be moved toward each other whereby to separate the opposite ends of the arms to release the object, whereby to project the same from the device by centrifugal force.

In testimony whereof I aflix my signature in presence of two witnesses.

GARABED HAZARVARTIAN. Witnesses:

M. E. JoNEs, HELEN STENNER.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. (2. 

